Flat towing, engine off, p/s fluid question

[1998_K1500_Sub]

Well, I think the OP is referring to what happens to the fluid when you turn the wheel without the engine running.

Isn’t this effectively how one bleeds the PS system per the service manual?

Engine off. Turn steering lock to lock 10-20x to bleed.

 

[Supercharged111]

Isn’t this effectively how one bleeds the PS system per the service manual?

Engine off. Turn steering lock to lock 10-20x to bleed.

Meh, fill it and run it. If it growls the bubbles should float to the top overnight and be good the next day.

 

[someotherguy]

Isn’t this effectively how one bleeds the PS system per the service manual?

Engine off. Turn steering lock to lock 10-20x to bleed.

Meh, fill it and run it. If it growls the bubbles should float to the top overnight and be good the next day.

Y'all wild. Neither of those procedures listed in my service manual..

IMO if it growls at all, you did damage.

Not trying to fire shots, and someone here did disagree with what I posted from the factory manual, so I guess it's one of those "many ways to do it" things.

Richard

 

[Supercharged111]

Y'all wild. Neither of those procedures listed in my service manual..

IMO if it growls at all, you did damage.

Not trying to fire shots, and someone here did disagree with what I posted from the factory manual, so I guess it's one of those "many ways to do it" things.

Richard

I've never had a failure that I feel I could attribute to a fast and loose bleeding procedure. Hell, twice now I've fired up the dually (has a slow ps leak) and been greeted with a nice, loud pump growl. I was forced both times to drive it that way to get more fluid, and once it warmed up the pump was quiet again, albeit still low. So the growl isn't a guaranteed death sentence. Another example is my Z06 on track with factory PS cooler. Once it gets hot it growls, I think the fluid aerates at high RPM with a stock setup. Even a full flush with Royal Purple didn't keep the growl away, I think that car needs a remote reservoir/swirl pot to function properly on track. Same pump is in it today, silent as can be with street use. IMO the factory procedure is a bit OCD, but of course that's based on my own personal experience.